convolvulace^e. 265 



on stout petioles: corolla 1% in. broad, pinkish: capsule 1-celled. — On 

 sandy beaches only. May, June. 



4. C. subacaulis (Hook. & Am.). Fibrous-rooted low perennial; 

 stem 1 — 18 in. long, erect, trailing, or in forms with longer stem some- 

 what twining: leaves thin, sparingly pubescent, oblong or ovoid or 

 deltoid: with truncate or hastate base: bracts smallish, embracing but 

 not enclosing the calyx: corolla campanulate-funnelform, angularly 

 5-lobed, 2 in. broad, cream-color, with purplish exterior. — Common and 

 variable species of low hills along the seaboard. 



5. C. villosus (Kell.), Gray. Stouter than the last, equally variable 

 in size, form of leaves, etc., but stems more numerous, stouter, more 

 leafy, and the whole herb densely velvety-lomentose and while: leaves 

 rather sharply triangular-hastate as a rule, but variable: bracts narrow, 

 but as long as the calyx: corolla smallish, funnelform, cream-color. — 

 Mt. St. Helena, Mt. Diablo, and the higher inner range of hills generally. 



6. C. sepinin, L. Stems from a horizontal slender running root- 

 stock, 2—3 ft. high, twining firmly: petioles, leaf-margins, etc., some- 

 what pubescent: leaves sagittate, very acute: bracts ovate-cordate, 

 acute, large, completely enfolding the calyx: corolla pinkish, 2 in. long 

 or more. — Plentiful in brackish marshes towards the mouth of Napa 

 River and about Suisun Bay; its roots within reach of tide water; its 

 stems twining upon rushes and sedges. June -Aug. 



* * * Natioe species; peduncles with small subulate bracts. 



7. C. lnteolus, Gray. Shrubby, the herbaceous growing and flower- 

 ing branches twining, the whole ascending shrubs and trees to the 

 height of 20 ft. or more; the whole plant glabrous: leaves sagittate, 2 in. 

 long: peduncles several-flowered, longer than the leaves ; bracts linear- 

 lanceolate, distant from the calyx about their own length: corolla rather 

 open-funnelform, pale cream-color, 1% in. long, the limb not lobed or 

 angular. Var. parpuratns. Herbage distinctly glaucescent; corolla 

 with broader shorter tube; color of limb from light to deep rose-purple. 

 — Type very common on hills and along streams. The variety alone is 

 found on islands in the Bay; occurring also on banks and ledges near 

 the salt water on the mainland in Marin Co. May — Oct. 



2. DICHONDRA, Forsler. Prostrate creeping herbs, with round- 

 reniform foliage, and small axillary flowers. Corolla campanulate, 

 deeply 5-lobed. Ovary of 2 distinct carpels, each with a filiform style 

 and capitate stigma, and maturing as an utricular 1-seeded fruit. 



1. D. repens, Forst. Slender stems partly subterranean, rooting 

 freely, when above ground pubescent: leaves glabrous, %— 1 in. wide, 

 on long petioles: flowers short-peduncled: sepals obovate to spatulate, 



